Shaped or molded block for making ceilings.



J. WORNER. SHAPED 0R MOLDED BLOCK FOR MAKING OEIL INGS.

APPLIFJATION FILED MAY 17, 1911.

M. 1 mm. M 7 R w p Am E m 2 a P J. WO'RNER. SHAPED 0R MOLDED BLOCK FOR MAKING GBILINGS.

APPLICATION FILED MAY17 1911.

Patented Apr. 7, 19141 2 SHEETS-SHEET 2.

priiiinn remand enrich.

J OHANNES WijRNER, OF GANNSTATT, GERMANY, ASSIGNDR OF ONE-FOURTH TO FREDEEISK A. EACH, OF CHICAGO, ILLINOIS.

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Specification of Letters Patent.

Patented Apr. 1914.

Application filed May 17, 1911. Serial 210. 627,754.

- for making ceilings, which is adapted not only for the construction of: ceilings of brickwork only but is designed more par ticularly for constructing those ceilings which are composed of reinforced concrete or term-concrete beams and molded blocks or bricks.

In accordance with the invention the block smooth beneath and has channels or grooves above, in which iron rods and concrete may be placed in order to form supporting beams, without any molds being necesgary therefor. The capability of using the molded block in two difl'e'rent positions al-. lows of strips of brickwork of any suitable width and smooth. on both sides, being built between the beams and thereby the distance between the term-concrete beams to he suitably regulated, so that it is possible to very favorably utilize the carrying power of the concrete beams. v

A mode of carrying the invention into effect, with several examples of its application, is represented in the accompanying drawings, in which, Figure 1 is a View of a single block; Fig. 2, a cross section of a ceiling made of similarly placed blocks or bricks; Fig. 3 is a section of a ceiling in which part of the blocks are reversed and the concrete layers are of different thickness; Fig. 4, a View of. the half finished ceiling. The ground form of the block a. consists 'of an equilateral trapezium, the base 1 of which is of a broad form having at each end the vertical walls 2 and 3, which terminate in concaved portions 4 and 5, extending longitudinally oi the block, and the upper ends of which are some distance within a vertical line with the vertical end walls 2 and 3. The upper ends of the concaved portions 4 and 5 terminate in convexed portions 6 and 7, forming the abrupt curved shoulders 8 at the junction of the concaved convexed portions. The upper end of the convex portions 6 and 7 terminate in vertical walls 9 and 10 connected by the horizontal wall 11, which forms the cap at the upper end of the block. By reason of their tapered sectional form, which in extreme cases may also approach an equilateral triangle, the blocks when they are arranged to gether in a uniform position, leave between them channels or grooves which are closed below and serve, according to Figs. 24, to a certain extent as a framing or mold for the term-concrete beams l) which support the molded blocks a, so that only separate boards 0, which may have large intervals between them, are necessary for supporting the blocks, a, as may be seen in Fig. 4.

The blocks as constructed and as shown on the left of Fig. 3, may be alternated in respect to the top and bottom, and in such position the shoulders 7 and 8 interlock with the shoulders of the blocks on each side and form a solid floor or wall, the blocks of which cannot have any lateral movement in respect to the wall.

Between the separate ferro-concrete beams any suitable number of molded blocks in alternate reversed positions may be arranged in the way shown in Figs. 3 and 4 when the distance between the beams is to be made larger or smaller in accordance with the actual load of the building construction.

What I claim is- A reversible block of the character set forth, comprising substantially parallel upper and lower faces, one being wider than the other, and side faces, each comprising a concave portion and a convex portion of substantially equal width, the curves of said concave and convex portions being of substantially equal radii and their adjacent edges being offset from each other, forming undercut shoulders for the sides of the block between its upper and lower faces.

In testimon whereof I afiix my signature in presence 0 two Witnesses.

'JOHANNES WGRNER.

, Witnesses:

HERMANN WIETHi'IoHTER, FRIDA KLAIBER. 

